Oil-press mat



(ModelL) J. J. MISTROT. Oi'l PressMat.

No. 243,596. Patented June 28, 1881..

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vTo all whom ztmay concern UNITED STATES PATENT OFFICE.

JEAN JACQUES MlSTR-OT, OF BRYAN, TEXAS.

OIL-PRESS MAT.

SPECIFICATION forming part of Letters Patent No. 243,596, dated June 28,1881.

Application filed March 23, 1880. (ModeL) Be it known that I, JEAN J.Mrsrao'r, of Bryan, in the county of Brazos and State of Texas, haveinvented certain new and useful Improvements in Oil-Press Mats; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit pertains to make and use it, reference being had to the accompanyingdrawings, which form part of this specification.

My invention relates to an improvement in oil-press mats; and itconsists in uniting the two outer leaves together by means of a leatherback which covers both of their outer sides.

It further consists in attaching the, central leaf to the center of thehinge which unites the two outer leaves together by means of two rods orbolts and a connecting leather link.

It still further consists in forming each one of the leaves out of oneor more thicknesses of metal, which is backed up with or lined bypress-cloth or cork, all of which will be more fully describedhereinafter.

The object of my invention is to produce a mat which is provided withthree leaves, whereby two cakes can be pressed at the same time, and thethree leaves to be flexibly connected together in such a manner that themat can be readily and easily handled, at the same time that it is madestrong and durable and lasting.

Figure 1 is a longitudinal vertical section of one of the leaves of themat and its hinge. Fig. 2 is a vertical cross-section of the same. Fig.3 is a plan view of one of the mats open. Fig. 4 is aside elevation ofthe mat, one of the leavesbeing broken away.

. A B represent the two outer leaves of the mat, and O the central one.These two outer leaves are formed of two thicknesses, D, of sheet metalof any suitable kind, and in between the two sheets of metal is athickness of cork or press-cloth, F, as shown, for the purpose ofstrengthening the two layers of metal, giving them a greater amount ofelasticity and a greater thickness. The edges of these plates are turnedover upon the inner side of the mat, as shown, and inside of theseturned-over parts are placed the rods or wires G, which form the ridgeor flange along the sides of the mat, as shown. Also secured to theinner side of each j .one of these leaves, at a suitable distance fromits end, in any suitable manner, is the cross bar;

or piece H. Applied to the outer side of each of the metallic portionsof the leaves thus formed is a layer of press-cloth or cork,I, andfastened to the outer sides of each of these leaves is a thickness ofheavy leather, J, which united. These thicknesses of metal, cork, or

press-cloth and leather are all fastened together by rivets N, which arepassed through all of them, as shown in Figs. 1 and 3.

Fastened to the hinge L by means of suitable rivets is a leather strip,0, which forms a carrying-handle.

The central leaf, 0, is likewise formed of two thicknesses of metal, inbetween which is placed a layer of cork or presscloth, and the twothicknesses of metal and thelayer of press-cloth or cork are unitedtogether by rivets, as above described. Across the outer end of thisleaf 0 is placed across-bar, P, but at the inner end of: the leaf thereis no crossbar, as shown in Fig. 3. This central leafis connected to aflexible leaf or hinge, It, which is made of leather or other similarmaterial, by means of a rod or wire, as shown in Fig. 3, and the otheredge of this hinge is connected to the hinge which unites the two outerleaves together by means of a similar rod or wire, S. As seen in Fig. 4,the inner leaf, by means of its hinge, has its inner end some distancein beyond the ends of the other two leaves, but its outer end is justflush with them.

By means of a mat thus constructed the leaves will always retain aparallel position,

and the matis strong, durable, and easily handled.

I am aware that an oil-press mat composed of three leaves which areunited together by short leather straps is not new, and that'it is notnew to connect two leaves together by means of a leather band, and thisI disclaim.

Having thus described my invention, I claim-- 1. In an oil-press mat, aleaf composed of two thicknesses of metal having placed in between thema layer of press-cloth or cork, substantially as shown.

2. An oil-press mat in which the outer leaves 4. In an oil-press mat,the combination of have applied at their outer sides a thickness of thethree leaves A B G, hinges L R, and conpress-cloth or cork and athickness of leather, necting-rods for uniting the hinge R to the 15which leather forms the hinge for connecting hinge L, and plateO,substantially as specified.

5 the two outer leaves together, substantially as In testimony that Iclaim the foregoing I described. have hereunto set my hand.

3. In an oil-press mat, the combination of the three-leaves A B G, theleather covering J JEAN JACQUES MISTROT. for the two outer leaves, andwhich forms the IO hinge L, with the central hinge, R, connectedWVituesses:

to the plate 0 at one end and to the hinge L WM. KOPPE, at the other,substantially as set forth. M. BONNEVILLE.

